Which of the following characteristics pertain to a "ragged" hierarchy?

Which of the following characteristics pertain to a “ragged” hierarchy?

A.
It can only be stored in an XML structure.

B.
A branch of the hierarchy may have a different number of levels than other branches.

C.
All values can have a maximum of six levels.

D.
It creates multiple levels of hierarchy in the database table.

Explanation:
Ragged Hierarchies are hierarchies where some routes down the hierarchy are
longer than others; for example, you may have an organizational hierarchy for salespeople where
the overall boss has two assistant managers, one of them works on their own and another has
three sales managers under them; some of those sales manager may have sales staff under
them, and some sales staff may have trainees under them.